Alec F. Litvin (Student section: 65A) CHEM 111 - Fall 2020 Main Menu Contents Grades Groups Course Contents ».. » Homework Set 7 » t25p53a 1O Timer In the upper atmosphere, ozone is produced from oxygen gas in the following reaction. 302(g) - 203(g) Calculate AS° for this reaction. Enter your answer in J/K and give 3 significant figures. -141 You are correct. Your receipt no. is 165-9191 Previous Tries Calculate AG° for ozone formation. (Enter your answer in k) and give 3 significant figures). 47 326 You are correct. Your receipt no. is 165-142 0 Previous Tries Calculate AH° for ozone formation. (Enter your answer in k) and give 3 significant figures). 285 You are correct. Your receipt no. is 165-5574 Previous Tries Assume an atmosphere where p(02) = 0.180 atm, and where T = 298 K. Below what pressure of O3 will ozone production be spontaneous? (Enter your answer in atm). 2.67e-32 Use the formula AG=AGo + RTINQ for this reaction, and plug in the known AGo, T and p(02) for an overall AG=0, and solve for p(O3). Be careful not to round off on your Submit Answer Incorrect. Tries 1/99 Previous Tries This discussion is closed.

Which process is a physical change? р process 1: H₂O₂(1) --> H₂(g) + O₂(g) process 2: H₂(g) + Cl₂(g) --> 2 HCl(g) process 3: C₂H₂(1) --> C6H(s)

20. An initial mixture of sulfur (black square) and oxygen gas (red circles) is represented: Before: S Using this equation: 25 + 30, → 2S03 what would the results look like? Show your work. А в с D E

Solve and explain step by step

40L31-22SP / Week 8: Experiment 8- Designing Hot and Cold Packs/ Experiment Fill in the blank with the correct words: Energy is to break a bond and when a bond forms. required released

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I Review Constants Periodic Table For a certain chemical reaction, AH° = -35.8 kJ and AS° = -80.0 J/K. Part A Is the reaction exothermic or endothermic? O exothermic O endothermic Submit Prevlous Anewere v Correct Anegative enthalpy value indicates that energy is released by the system. Therefore, the reaction is exothemic. Part B Does the reaction lead to an increase or decrease in the disorder of the system? O increase O decrease Submit Previous Anawere v Correct The sign of the entropy change is negative, which indicates that the disorder, or entropy, of the system has decreased. • Part C Calculate AG for the reaction at 208 K. Express your answer using two significant figures. emplates Symbols undo redo feset keyboard shortcuts Help AG" = 7.98 kJ Submit Prevlous Anewere Requeet Anawer X Incorrect; Try Again; 4 attempts remaining

When solutions containing silver ions and chloride ions are mixed, silver chloride precipitates: Ag+ (aq) + Cl (aq)AgCl(s), AH=-65.5 kJ

Please answer question 20 part A

com/myct/itemView?offset3Dnext&assignmentProblemID=182385266 dynamics Feedback 2 of 25 I Review | Constants | Periodic Table Part A . You in your When 0.645 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, raising the temperature of the solution from 23.2 °C to 29.5 °C. ce Find AHn for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g °C and the density is 1.00 g/mL.) Txn O -224 kJ O -4.08 kJ O -1.45 kJ O -2.63 kJ